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Safety Evaluation of Continuous Shoulder Rumble Strips Installed on Freeways
The 1997 statistics from the Fatality Analysis Reporting System (FARS) show that 37,280 fatal crashes occurred, with 11,126 of these crashes being coded as single-vehicle run-off-the-road crashes. This significant safety problem is being addressed with continuous shoulder rumble strips (CSRS) and other safety treatments by many highway agencies.
Raised rumble strips are 50 to 305 mm wide rounded or rectangular markers or strips that adhere to new or existing pavements. Some road agencies use raised buttons. Because their height can range from 6 mm to 13 mm, use of raised rumble strips is usually restricted to warmer climates that don't require snow removal.
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